Heater and brooder stove



Sept. 11,' 1934. I M, HUGHES 1,973,257

HEATER AND BROODER STOVE Filed 001;. 20, 1933 'fd 4b 30 5654 32,

Patented Sept. 11, 1934 HEATER AND BRooDER .sTovE George M. Hughes, Webb, Iowa 1933, serian No. 694,436

` Application october zo,

14 Claims.

. The object of my invention is to provide a heater and brooder stove which is simple,

durable and comparatively inexpensive to manufacture.

A further object of my invention is to provide an air tight combustion chamber having no grate in it like ordinary heater or brcoder stoves, and having only an air inlet opening and a chimney outlet so that the stove can be utilized for burning wood V(a commodity always found on farms),

a draft'lid being provided for the air-inlet Opening and thermostatically controlled so as to avoid overheating of the brooder house in which the stove maybe mounted and economize on the use of fuel to such an extent that under ordinary conditions and averagewinter temperatures, the stove need not be tended or refueled but once a A further object is to provide a draft lid hinged along its lower edge so that the lower edge of the air inlet opening is always closed to avoid any possibility of `red-hot coals falling from the air inlet opening.

ture conditions in the brooder house.

A further object is to provide an arrangement for the draft lid which will permit it to be closed by excessive vair currents independent of the thermostatic control therefor. Another object is to provide a brooder stove in which the combustion chamber has a peripheral bead on which a hover can rest.

With these and other objects in view my invention consists in the construction, arrangement and combination of the various parts of my invention., whereby the objects contemplated are attained, as hereinafter more fully set forth,

pointed out in my claims, and illustrated in the accompanying drawing, in which:-

Figurel is a plan view of a brooder stove einbodying my invention.

Figure 2 is aside elevation thereofshowing thestove partly in'section.

Figure 3 isa front elevation on the section 3--3 of Figure 2.

line

Figure 4 isan enlarged` detailed sectional View on the lineV 4-4 of Figure 2;

FigurenV is a-diagrammatic" View of my inside -a `brooder house; and

stove (o1. zaag-s) Figure 6 is a plan section of a modified shape of the invention.

In the accompanying drawing, I have used the reference numeralv 10 to indicate generally a brooder house. 12. erence character A.

The stove A comprises a sheet metal drum-like combustion chamber 14 supported by `legs 16 which are secured to the bottom thereof and ex- 651i tend downwardly and outwardly so as to provide a substantial supporting base for the stove to prevent any tipping over thereof. A chimney 18 extends from the top of the stove and is adapted to Yextend through the roof 20 of the 70t brooder house 10, as shown in Figure 5.

The stove A has a fuel inlet opening 22 adapted to be covered by a cover 24 which snugly fits thereonto make the combustion chamber air tight. An inlet tube 26 provides an air inlet whereby air and its'necessary oxygen enter the sto-ve. 26.

A draft lid. 28 is hinged to the inlet tube It will be noted that the hinge connection indicated at 30 is at the lower edge of the draft 80 lid. This prevents any red-hot coals tumbling from the burning fuel within from dropping out on the iioor 12 and causing a fire.

To automatically regulate the draft lid 28 I provide thermostatic means which will now'be described. A supporting bar 32 is secured as by rivets or the like 34 to the bottom of the combustion chamberl4 and extends outwardly therefrom. Supported by an adjustable bolt 36 extending looselyv through the supporting bar 32 90 is a draft lid bar 38.

The bolt 36 extends loosely hundred degrees. pins which and 38.

Its ends are provided with t into depressionsin the bars 32' A guide pin 46 is provided for the inner end of the draft lid bar 38. It is secured to the bar 32 as by'a lock nut 48 and extends looselyy through 50 -of the draft bar 38 (see 110 an enlarged opening Figure 4).',

The iioor thereof is indicated at 6D. My stove is indicated generally by the ref- The draft lid 28 is provided with an operating arm 52 to which is pivoted an operating rod 54. The rod 54 extends loosely through an opening 56 in the supporting bar 32 whereby it is guided and its lower end engages the draft lid bar 38.

The combustion chamber 14 may be provided with a pair of reinforcing peripheral beads 58 and 59. A truncated cone shaped hover may rest on the upper bead 59 as shown for instance in Figure 5. It will be noted that the hover 60 is comparatively deep and thus prevents the space thereunder from getting excessively hot, although it becomes warmed to the proper temperature, as accurately controlled by the thermostatic element 44. By resting on the beadw 59 the hover is conveniently and simply supported with respect to the stove.

In operation it will be obvious that an increase of temperature surrounding the thermostat 44 will cause the same to expand and separate the' outer ends of the bars 32 and 38 with the bolt 36 acting as a pivot. This will raise the inner end of the draft lid bar 88 so that the operating rod 54 will also be raised and the draft lid 28 will be swung toward closed position. This will check the rate of burning of fuel in the combustion chamber 14 until the air surrounding the thermostat 44 cools enough to contract it and permit the inner en d of the draft lid bar 88 to lower, whereupon thedraft lid 28 will be moved in an opening direction, its weight and the weight of the operating rod 54 keeping the lower end of the rod in contact with the draft lid bar 38.

It will be obvious that the draft lid 28 can be closed independent of the thermostat 44. This is desirable so that when van excessive air pressure develops in the brooder house, such as might happen on a windy day, `the lid 28 will be pulled closed by the excessive draft until the air pressure has subsided suiciently to permit the draft lid to reopen and be controlled by the thermostat.

I have found that a brooder stove of this character is quite economical and efcient. It holds the temperature Within the brooder house at a constant degree and is very reliable in its operation. Y

Without the hover, the stove is also adaptable for heating houses and will accurately regulate the temperature of the air in the room.

In Figure 6 I have shown the combustion chamber of oval shape rather than round and the inlet tube 26 as being round instead of square.

l The draft cap 28 is shown as a segment of a sphere or can be cone shaped. The shape of the stove as shown in Figure 6 is, in most instances, preferable to the shape shown in the preceding figures.

Changes in the shape, as just suggested, vor other changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my invention, and it is my intention to ,cover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within theirsc'opa I claim as my invention- Yl. In a brooder stove, an airtight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, adraftlid on said varr inletV opening, a supportingibarfsecured to the bottom of said combustion chamber and extending Youtwardly therefronn'a draft lid bar below said supporting bar and pivotedinte'rmediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, a guide pin secured to said supporting bar and extending loosely through said draft lid bar and an operating rod connected with said draft lid and engaging said draft lid bar.

2. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, said draft lid being hinged at its lower edge thereto, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, aguide pin secured to said supporting bar and extending loosely through said draft lid bar and an operating rod connected with said. draft lid and engaging said draft lid bar.

3. In abrooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent thebottom thereof, a draft lid on said air inlet opening, a supporting bar secured to said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, a guide pin secured to said supporting bar and extending loosely through said draft lid bar and an operating rod connected with said draft lid and engaging said draft lid bar.

4. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, means for adjusting said pivotal connection, a thermostat interposed between the outer ends of said supporting and draft lid bars, a guide pin secured to said supporting lli" bar and extending loosely through said draft lid bar and an operating rod connected with said draft lid, extending loosely through said supporting bar and engaging said draft lid bar.

5. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, means for adjusting said pivotal connection, means for indicating the Ytemperature to which the thermostat is adjusted, said means comprising anY extension from `the side of one of said bars and extending across the edge of the other bar, a thermostat interposed between the outer ends of said supporting and draft lid bars, a guide pin secured to one of said bars and extending loosely through the other one and an operating rod connected with said draft lid, extending loosely through said supporting bar and engaging said draft lid bar. l

6. In a brooder stove, an airtight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of saidroombustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar, the engagement connection permitting said draft lid to be closed by air pressure independent of the thermostat.

7. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, said draft lid being hinged at its lower edge thereto, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar, the engagement connection permitting said draft lid to be closed by air pressureindependent of the thermostat.

8. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, means for adjusting said pivotal connection, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid extending loosely through said supporting bar and engaging said draft lid bar, the engagement connection permitting said draft lid to be closed by air pressure independent of the thermostat.

9. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, means for adjusting said pivotal connection, means for indicating the temperature to which the thermostat is adjusted, said means comprising an extension from the side of said draft lid bar extending across the edge of said supporting bar, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar, the engagement connection permitting said draft lid i to be closed by air pressure independent of the thermostat.

10. In a brooder stove, an air tight combustion chamber, a peripheral bead around said combustion chamber, a hover surrounding the combustion chamber and supported on said bead, a chimney rising from said combustion chamber, an

air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar.

ll. In a broeder stove, an air tight combustion chamber, supporting legs secured to the bottom thereof and extending downwardly and outwardly therefrom, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a supporting bar secured to said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar.

12. In a broeder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, an arm on said draft lid, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said arm on said draft lid and with said draft lid bar.

13. In a brooder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, a removable cover on said combustion chamber, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pvoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaging said draft lid bar.

lll. In a broeder stove, an air tight combustion chamber, a chimney rising therefrom, an air inlet opening adjacent the bottom thereof, a draft lid on said air inlet opening, hinged at its lower edge to the combustion chamber, a removable cover on said combustion chamber, a supporting bar secured to the bottom of said combustion chamber and extending outwardly therefrom, a draft lid bar below said supporting bar and pivoted intermediate its ends thereto, a thermostat interposed between the outer ends of said supporting and draft lid bars, and an operating rod connected with said draft lid and engaginfr said draft lid bar.

GEORGE M. HUGHES. 

